Manifold catalyst



FIG. 1 is a front view of the “manifold catalyst” showing my new design, the rear view being identical thereto;

FIG. 2 is a right side view thereof; the left side view being identical thereto; and,

FIG. 3 is a top plan view thereof; the bottom plan view being identical thereto.

The broken lines in the drawings represent portions of the manifold catalyst and form no part of the claimed design. 

CLAIM I claim, the ornamental design for a manifold catalyst, as shown and described. 